MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75
SHA3-384 hash: a65824087b737ea4c89f32f8109af0f9a807f36f9f7a8c149b4e59b8f1ad7d2320be5e2854a42107d956544a27a4d8f1
SHA1 hash: be67be8271cb25d9e3e0d1979b808c074bd3b9aa
MD5 hash: f48e05e20d6f53bb45685b361c890718
humanhash: oklahoma-maine-single-football
File name:boatnet.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:53'828 bytes
First seen:2025-09-06 04:00:24 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:1KLr383GF15J46M5/ZvMa00um3LyBtgMD6zZK:qr3ln46ihZdbLyBN
TLSH T17433010B96F394884074AF3EDD6905839D182F60E17B2AB7313C95E4A96FC220ED4A1E
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :53'828 bytes
File size (de-compressed) :152'434 bytes
Format:linux/arm
Unpacked file: 9aa44f956f3579d834cf8450db3a96fb87129e94fabc3031fd7e8122b7fea6eb

Intelligence

File Origin
# of uploads :
1
# of downloads :
33
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
no reply from clamd
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Connection attempt
Runs as daemon
Sends data to a server
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed threat upx
Link:
https://www.filescan.io/uploads/68bbb1f320d0ee406d97a227/reports/12e86bbc-e44c-4fbf-bfb0-c905877434b1/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
26
Number of processes launched:
4
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-06T01:50:00Z UTC
Last seen:
2025-09-06T01:50:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/57bd4773-c0be-4828-b10c-5c375cfb736b
Behavior Graph:
Download SVG
%3 guuid=9843f776-1900-0000-abeb-0a4b66140000 pid=5222 /usr/bin/sudo guuid=6c3f687a-1900-0000-abeb-0a4b67140000 pid=5223 /tmp/sample.bin guuid=9843f776-1900-0000-abeb-0a4b66140000 pid=5222->guuid=6c3f687a-1900-0000-abeb-0a4b67140000 pid=5223 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6cb5322c-3e03-444b-84d0-5d229242939d
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1772196
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1772196 Sample: boatnet.arm7.elf Startdate: 06/09/2025 Architecture: LINUX Score: 72 27 155.162.96.132, 23 ZAMRENZM United States 2->27 29 12.195.147.29, 23 WORLDNET5-10US United States 2->29 31 99 other IPs or domains 2->31 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Mirai 2->39 41 Sample is packed with UPX 2->41 8 boatnet.arm7.elf 2->8         started        10 xfce4-panel wrapper-2.0 2->10         started        12 xfce4-panel wrapper-2.0 2->12         started        14 9 other processes 2->14 signatures3 process4 process5 16 boatnet.arm7.elf 8->16         started        19 boatnet.arm7.elf 8->19         started        21 boatnet.arm7.elf 8->21         started        23 wrapper-2.0 xfpm-power-backlight-helper 10->23         started        signatures6 33 Sample tries to kill multiple processes (SIGKILL) 16->33 25 boatnet.arm7.elf 19->25         started        process7
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-06 04:01:30 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmnskt3jhim5hoslm34velebcbbrwrk2vibbopwhttgugop7fv2q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250906-ek3f2agl6v/
Behaviour
Reads runtime system information
Writes file to system bin folder
Modifies Watchdog functionality
Contacts a large (2021) amount of remote hosts
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/813ce248-cbf7-4055-a54c-c26614be400f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4b1b254f693a19d3ba4b66f9522c8110431b455aaa02173ec79ccd4339ff2d75

(this sample)

Mirai

elf 9aa44f956f3579d834cf8450db3a96fb87129e94fabc3031fd7e8122b7fea6eb

  
Dropping
SHA256 9aa44f956f3579d834cf8450db3a96fb87129e94fabc3031fd7e8122b7fea6eb
  
Dropping
MD5 c38cdb25a5e6a6c14ece02dbc0256a26
  
URLhaus
https://urlhaus.abuse.ch/url/3615413/
  
Delivery method
Distributed via web download

Comments